Those decorations that are put there to help find the correct door, HAVE BEEN MOVED from time to time, and the people couldn't get their key to work. They went to the purser, who made them a new key, and of course it still didn't work. The purser then came down to the cabin with the people, and pointed out that they were trying to open the wrong door. NO, it wasn't me, but it was brought up by the Cruise Director on one ship we sailed. Point is, don't totally depend on door decorations to find your cabin. You still have to remember that number on the door.
Ken